Optimization of Agrobacterium-mediated Soybean Transformation using the Cotyledonary Node
Hao RongXua, Shao Qun, Yang SuXin, Jicun Li, Xianzhong Feng, Zhao Yanxiu
Abstract
Hao RongXua, Shao Qun, Yang SuXin, Jicun Li, Xianzhong Feng, Zhao Yanxiu
Abstract
To optimize the system of Agrobacterium-mediated soybean[Glycine max(L.) Merrill]transformation,effects of 13 cultivars and 2 selection agents were studied during the process of shoot regeneration and transformation.The results showed that the cultivar 'Shanning 14' induced the highest number of multiple shoot among tested 13 cultivars,and hygromycin B was better than glufosinate during transformant selection of cultivar 'Shanning 14'.The optimal transformant selection scheme was a gradient concentration of hygromycin B from 3 to 8 mg·L-1.The integrations of UidA(GUS)gene into the transformant genome were demonstrated by histological staining,PCR application and sequencing analysis.Transformation efficiency was 3.2% based on the number of transformed events.
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To optimize the system of Agrobacterium-mediated soybean[Glycine max(L.) Merrill]transformation,effects of 13 cultivars and 2 selection agents were studied during the process of shoot regeneration and transformation.The results showed that the cultivar 'Shanning 14' induced the highest number of multiple shoot among tested 13 cultivars,and hygromycin B was better than glufosinate during transformant selection of cultivar 'Shanning 14'.The optimal transformant selection scheme was a gradient concentration of hygromycin B from 3 to 8 mg·L-1.The integrations of UidA(GUS)gene into the transformant genome were demonstrated by histological staining,PCR application and sequencing analysis.Transformation efficiency was 3.2% based on the number of transformed events.
Key concepts: Transformation (genetics), Agrobacterium, Cultivar, Biology, Hygromycin B, Shoot, Glufosinate, Agrobacterium tumefaciens